【7.0.01288.0】【数据集缓存刷新报错】

报错信息如下：

GrapeCity.Enterprise.DataService.DataWarehouse.Facade.DataWarehouseException: [DW] Failed to create data file.
---> System.IO.EndOfStreamException: Expected to read 39 payload bytes but only received 35.
   at MySqlConnector.Protocol.Serialization.ProtocolUtility.<DoReadPayloadAsync>g__AddContinuation|5_0(ValueTask`1 readPacketTask, BufferedByteReader bufferedByteReader, IByteHandler byteHandler, Func`1 getNextSequenceNumber, ArraySegmentHolder`1 previousPayloads, ProtocolErrorBehavior protocolErrorBehavior, IOBehavior ioBehavior) in /_/src/MySqlConnector/Protocol/Serialization/ProtocolUtility.cs:line 480
   at MySqlConnector.Core.ServerSession.ReceiveReplyAsyncAwaited(ValueTask`1 task) in /_/src/MySqlConnector/Core/ServerSession.cs:line 956
   at MySqlConnector.Core.ResultSet.<ScanRowAsync>g__ScanRowAsyncAwaited|9_0(ResultSet resultSet, Task`1 payloadTask, Row row, CancellationToken token) in /_/src/MySqlConnector/Core/ResultSet.cs:line 244
   at MySqlConnector.Core.ResultSet.ReadAsync(IOBehavior ioBehavior, CancellationToken cancellationToken) in /_/src/MySqlConnector/Core/ResultSet.cs:line 215
   at MySqlConnector.Core.ResultSet.Read() in /_/src/MySqlConnector/Core/ResultSet.cs:line 191
   at GrapeCity.Enterprise.Data.DataSource.Common.SqlExecutor.SourceTable.<>c__DisplayClass25_0.<<LoadFromReaderImpl>g__IterateOnly|1>d.MoveNext()
   at System.Linq.Lookup`2.CreateForJoin(IEnumerable`1 source, Func`2 keySelector, IEqualityComparer`1 comparer)
   at System.Linq.Enumerable.GroupJoinIterator[TOuter,TInner,TKey,TResult](IEnumerable`1 outer, IEnumerable`1 inner, Func`2 outerKeySelector, Func`2 innerKeySelector, Func`3 resultSelector, IEqualityComparer`1 comparer)+MoveNext()
   at System.Linq.Enumerable.SelectManyIterator[TSource,TCollection,TResult](IEnumerable`1 source, Func`2 collectionSelector, Func`3 resultSelector)+MoveNext()
   at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
   at System.Linq.Lookup`2.Create(IEnumerable`1 source, Func`2 keySelector, IEqualityComparer`1 comparer)
   at System.Linq.GroupedEnumerable`2.GetEnumerator()
   at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
   at System.Linq.Enumerable.SelectIterator[TSource,TResult](IEnumerable`1 source, Func`3 selector)+MoveNext()
   at GrapeCity.Enterprise.DataService.DataWarehouse.DuckDB.EnumerableExt.Partition[T](IEnumerable`1 input, Int32 blockSize)+MoveNext()
   at GrapeCity.Enterprise.DataService.DataWarehouse.DuckDB.ParquetDuckDbDataWarehouse.CreateNewDataFileAsync(String filePath, ISourceData sourceData)
   at GrapeCity.Enterprise.DataService.DataWarehouse.DuckDB.ParquetDuckDbDataWarehouse.CreateNewDataFileAsync(String filePath, ISourceData sourceData)
   at GrapeCity.Enterprise.DataService.DataWarehouse.DuckDB.ParquetDuckDbDataWarehouse.CreateAsync(String tableName, ISourceData sourceData, UInt64 dataVersion)
   --- End of inner exception stack trace ---
   at GrapeCity.Enterprise.DataService.DataWarehouse.DuckDB.ParquetDuckDbDataWarehouse.CreateAsync(String tableName, ISourceData sourceData, UInt64 dataVersion)
   at GrapeCity.Enterprise.Data.CacheWork.Processor.CommonCreateFullRefresh.CreateCacheWithDataAsync(CacheWorkReport report, ICacheWorkPayload payload, ISourceData sourceData)

问题描述：
缓存数据集刷新异常。
问题回答：
您好，这个得从多个方面排查一下。
一个您先进入系统后台:找到对应的数据集，刷新一下，看一下这个报错。这个就会告诉详细报错。



2.如果这个没有问题，查看是不是所有缓存都用不了了，如果都用不了，可能得详细看是不是缓存库的问题